Journal of Microwave Power
and Electromagnetic Energy (JMPEE) |
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TITLE |
Pecan Weevil Control by Dielectric
Heating [PDF] |
AUTHORS |
S.O. Nelson and J.A. Payne 1981 17 1 51-56 |
YEAR |
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VOLUME |
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ISSUE |
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PAGES |
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Abstract Exposure of
pecan-weevil-infested in-shell pecans of 6.1% kernel moisture to 43-MHz dielectric
heating treatments for 25 s killed all of the larvae in the pecans. Similar
treatment of larvae in pecan kernel pieces of 2.6% moisture provided complete
control with shorter exposures and lower temperatures in the pecans.
Microwave heating treatments at 2450 MHz were somewhat less effective in
controlling pecan weevil larvae in broken pieces of pecan kernels and shells
than were 40-MHz treatments of the same materials. The importance of pecan
moisture content is discussed. Treatments that control the larvae in in-shell
pecans will probably reduce pecan germination substantially, but effects on
pecans for food uses have not yet been evaluated. |